The Last Alchemist

Annie had a lot of experience in surviving in the wild. Soon after entering the forest, she found a dry and warm cave. There was a bear sleeping in the cave. She sneaked into the cave and pierced the bear's brain with a sword.

In the bear cave, except for the strong smell of fishy smell, everything else was fine. The stabbed bear also contributed a warm bear skin.

At this time, Rosen was so tired that he could hardly walk. He felt dizzy and could hardly think. His eyelids drooped. After confirming that the surroundings were safe, he lay down next to the still warm bear corpse and fell asleep in less than half a minute.

He had a dream.

In the dream, he slept soundly. When he woke up, he found himself lying on the soft big bed in the apartment. The golden sunlight passed through the floor-to-ceiling windows on the balcony and sprinkled on the quilt. The quilt was warm and comfortable.

The quilt exuded a warm fragrance. It was just changed by his mother when she came to school two days ago. Thinking of his mother, Rosen's mind emerged with her nagging.

‘You are already so old, why haven’t you learned to clean your room? It’s so messy, I don’t think any girl would like you. ’

‘Why are there so many fast food boxes? I tell you, eating too much of these things is not good! ’

‘Luoluo, I tell you’

‘Mom~ I know~’ Rosen replied subconsciously, and then he felt a slight movement in his heart: ‘Huh~ Am I back to Earth? ’

Rosen was startled, sat up on the bed, turned his head and looked around, and as a result, he felt a sharp pain on the side of his neck. He subconsciously reached out to cover it, and then looked around carefully. The warm quilt with a fresh fragrance turned into a bear corpse with a strong smell of mutton, the golden sunlight in the dream turned into a small bonfire, and the apartment in the dream turned into a dark and narrow bear cave.

A strong sense of loss surged into Rosen’s heart: ‘My parents must be worried about my sudden disappearance. And my grandmother, she is almost 80 years old, I must not let her know about me. ’

His thoughts were still in a dream, and his mind was constantly circling with all kinds of past events of living on Earth. He was stunned for a moment.

“Are you awake?” A voice came from the side. It was the hunter Annie.

Rosen came back to his senses and looked over. He saw the tall and agile female hunter sitting at the entrance of the cave. She was holding a dagger in her hand and bleeding a wild rabbit.

She was very careful. In order to prevent the smell from spreading, she dug a nearly 20-centimeter deep pit on the ground. The rabbit blood and rabbit internal organs were thrown into the pit, leaving only a rabbit skin.

After the rabbit blood was drained, she filled the pit again and covered it with fallen leaves and dead branches.

Rosen saw Annie string the rabbits together with a fresh branch, rubbed a handful of salt on the rabbit meat, and prepared to roast it on the campfire, so he said: "There is flour in the bag, add some salt water to make dough, wrap it on the rabbit meat and roast it together, the rabbit meat will be very tender and delicious after roasting."

Annie did as she was told, and laughed at the end: "After all, she is a rich young master, and she didn't forget to bring delicious food when she ran away. This kind of fine white flour costs 10 ronds per pound!"

"Hehe." Rosen laughed, without making any excuses, and asked: "Annie, how is your injury?"

Annie turned her head and smiled at Rosen, the light of the campfire reflected on her face, and she was shining: "It's recovering well, it doesn't hurt much anymore."

"Oh, that's good." Rosen looked at the sky outside the cave, which was still dark, so he asked: "How long have I slept?"

"Not long, probably less than two hours, and there is still half a day before dawn." Annie said.

"Two hours? The time is just right." Rosen nodded. According to his estimation, the safe time is only 3 hours. If the vampire Viken has not given up tracking, he may come to the door at any time in 1 hour.

There is still one hour left for the safe time. In 1 hour, the vampire Viken may come to the door at any time.

"Annie, do you still have silver powder in your hand?" Rosen asked. After resting for two hours, the effect is very good. Although the body has not fully recovered, it is much better than when the blood was sucked. Although the head is still a little dizzy, it does not affect thinking.

"There are still some."

"Where are the silver particles?" Rosen asked again.

"There are no ready-made silver grains, but there are many silver wolves in the money box. I can use a dagger to cut out silver grains for you. How big do you want?"

"I don't know how big it should be for now." Rosen gestured with his hands and said, "I also need a straight bamboo tube, about this thick, preferably more than three years old bamboo. There is a bamboo forest a few dozen meters away from the cave entrance. Can you help me pick some?"

"Of course, no problem, but are you planning to make a bamboo bow to deal with vampires?"

Rosen smiled bitterly: "Do you think the bamboo bow is useful?"

"No."

Although she said so, Annie still put down the rabbit in her hand, took the sword and walked out of the cave, about three or four A few minutes later, she came back with a few fresh bamboos: "Do you think these are okay?"

Rosen took them one by one and checked them, and finally chose a bamboo tube with an inner diameter of about 1 cm: "This one is very good, round and straight, and the size is right."

Annie didn't understand Rosen's idea at all, but she knew that time was tight, and the only thing she could do was to help Rosen, the alchemist, do what she could: "Now do you know how big the silver grains are needed?"

"Well, about this size, probably more than 100 grains. It would be better if you could roll them into rounder shapes." Rosen picked up a small stone from the ground to demonstrate to Anne.

Annie glared at Rosen: "Road it into a round shape? Silver is not mud. How can you rub such a hard thing into a round ball?"

It was true that she wanted to help, but it was an impossible task.

"Of course one ball won't be round, but you can roll dozens or hundreds of them together. It's best to mix some fine sand and polish the surface of the silver beads." He doesn't have high requirements for the roundness of the silver beads. , if it is an ordinary person, it will definitely not be possible, but the mutant stalker's hand strength is amazing. The 30-pound sword is like a toothpick with one hand. The texture of the silver particles is soft, and it is not a big problem to roll it into a ball. .

"Really?" Annie looked doubtful.

"You'll know if you try it."

Rosen himself was not idle either. He first put the bamboo pipe on the fire and roasted it for a while. After some of the water evaporated, the bamboo pipe became much harder.

Then, he tore off a long cotton strip from the cotton underwear he was wearing, picked up the bamboo tube, and wrapped the strip around the outer circle of the bamboo tube, wrapping it tightly five times before stopping.

This is done to strengthen the bamboo tube to prevent it from exploding in time.

After finishing, he cut a wooden stopper with a dagger, wrapped it with a layer of cloth, and tightly blocked one end of the bamboo tube. In this way, a simple launch tube is completed.

After finishing the launch tube, Rosen began to prepare the propellant, which was the most critical step.

Rosen took out two medicine bottles from the alchemy room at home. One medicine bottle contained saltpeter powder, and the other medicine contained glycerin. He mixed the two bottles of medicine together, added some water, then shook it vigorously, and waited until Stop when the solution and glycerin are completely combined.

After doing all this, Rosen took a deep breath, concentrated his mind, and focused on the solution in the bottle.

‘Saltpeter is potassium nitrate. When dissolved in water, the ionic bonds are broken and become freely mobile potassium ions and nitrate ions. Glycerin, whose scientific name is glycerol, contains three hydroxyl groups. If I could replace the three hydroxyl groups in the glycerol molecule with nitrate ions and completely nitrate the glycerol, I could prepare powerful nitroglycerin. ’

Under natural circumstances, this reaction is impossible. On Earth, glycerin must be catalyzed by concentrated sulfuric acid to form nitroglycerin and water with concentrated nitric acid. But now, Rosen has the alchemy talent of 'Friend of the Elements', which is equivalent to having a powerful catalyst.

Rosen held the medicine bottle in his hand, his body motionless, and his mind completely focused on the solution in the medicine bottle.

Time passed by minute by second. On the surface, Rosen seemed to be in a daze. The only change was that his forehead was sweating and big beads of sweat were dripping down.

About a minute later, there was no change in the solution in the medicine bottle, and Rosen's first attempt failed.

‘Hu~hu~’

Rosen was panting heavily, his whole body was almost covered with sweat, and white steam was evaporating above his head. In this minute, the alchemical energy he released almost exceeded the energy used to control the spread of mandala poison before, but he did not achieve any effect.

Anne on the side had been paying close attention to Rosen. When she saw him frowning and thinking, she asked in a low voice, "Can't you?"

Rosen nodded slightly: "Well~ My method is wrong. I'll think of other ways."

Starting today, there will be two updates every day. In addition, nitroglycerin and nitroglycerin are just a matter of interpretation, so don’t get entangled.